Johnson Controls TP8C/TPLC*MP Downflow Duct Connectors, Bottom Return and Attic Installations

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368262-UIM-B-1008

DOWNFLOW DUCT CONNECTORS

All downflow installations must use a suitable duct connector approved by the furnace manufacturer for use with this furnace. The duct connec- tors are designed to be connected to the rectangular duct under the floor and sealed. Refer to the instructions supplied with the duct con- nector for proper installation. Refer to the separate accessory parts list at the end of these instructions for the approved accessory duct con- nectors.

FURNACE

WARM AIR PLENUM

WITH 1” FLANGES

FIBERGLASS

INSULATION

FIBERGLASS TAPE

UNDER FLANGE

COMBUSTIBLE FLOOR

BASE ACCESSORY

FIGURE 2: Combustible Floor Base Accessory

RESIDENTIAL AND MODULAR HOME UPFLOW RETURN PLENUM CONNECTION

Return air may enter the furnace through the side(s) or bottom depend- ing on the type of application. Return air may not be connected into the rear panel of the unit.

BOTTOM RETURN AND ATTIC INSTALLATIONS

Bottom return applications normally pull return air through a base plat- form or return air plenum. Be sure the return platform structure or return air plenum is suitable to support the weight of the furnace.

The internal bottom panel must be removed for this application.

Attic installations must meet all minimum clearances to combustibles and have floor support with required service accessibility.

HORIZONTAL APPLICATION

FIGURE 3: Horizontal Application (Typical)

This furnace may be installed in a horizontal position on either side as shown above. It must not be installed on its back.

ATTIC INSTALLATION

This appliance is certified for line contact when the furnace is installed in the horizontal left or right position. The line contact is only permissi- ble between lines that are formed by the intersection of the top and the two sides of the furnace and the building joists, studs, or framing. This line may be in contact with combustible material. Refer to Figure 10 for details and additional information.

Vent Pipe (Maintain required clearances to combustible materials)

Supply

Air

Return

Air

FIGURE 4: Typical Attic Installation

This appliance is certified for line contact when the furnace is installed in the horizontal left or right position. The line contact is only permissible between lines that are formed by the intersection of the top and two sides of the furnace and the building joists, studs or framing. This line may be in contact with combustible material. Refer to Figure 4.

When a furnace is installed in an attic or other insulated space, keep all insulating materials at least 12 inches (30.5 cm) away from furnace and burner combustion air openings.

During installation, doors must remain on the furnace when moving or lifting.

When moving or handling this furnace prior to installation, always leave the doors on the furnace to provide support and to prevent damage or warping of the cabinet. When lifting the furnace, support the ends of the furnace rather than lifting by the cabinet flanges at the return air openings (bottom or sides) or supply air opening.

It is acceptable to use the primary heat exchanger tubes as a lifting point provided that the tubes are lifted at the front of the heat exchang- ers where attached to the vestibule panel. Do not use the top return bend of the heat exchangers as lifting points as the tubes may shift out of position or their location brackets/baffles.

SUSPENDED FURNACE / CRAWL SPACE INSTALLATION

The furnace can be hung from floor joists or installed on suitable blocks or pads. Blocks or pad installations shall provide adequate height to ensure that the unit will not be subject to water damage.

Units may also be suspended from rafters or floor joists using rods, pipe angle supports or straps. In all cases, the furnace should be supported with rods, straps, or angle supports at three locations to properly sup- port the furnace. Place one support at the supply end of the furnace, one support located approximately in the center of the furnace near the blower shelf, and the third support should be at the return end of the fur- nace. Maintain a 6” minimum clearance between the front of the fur- nace and the support rods or straps.

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Johnson Controls Unitary Products

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Contents List of Sections Section I SafetyModels List of FiguresSpecific Safety Rules and Precautions Safety RequirementsAnce to a 50 HZ Power Supply or a Voltage Above 130 Volts Combustion AIR Quality List of Contaminants Codes and StandardsInspection Furnace Location and ClearancesDuctwork General Information Floor Base and Ductwork Installation DownflowSection II Ductwork Duct FlangesAttic Installation Downflow Duct ConnectorsBottom Return and Attic Installations Suspended Furnace / Crawl Space InstallationCoil Installation COIL/FURNACE Assembly MC/FC/PC Series CoilsDownflow Application Furnace Assembly MC Series Coils only Furnace Assembly MC & FC Series CoilsCoil Flange Installation Furnace Assembly PC Series CoilsSection III Filters Filter InstallationAttempt to install filters inside the furnace Side ReturnSection IV GAS Piping GAS SafetyGAS Piping Installation Horizontal FiltersGAS Conversion for Propane LP Section V Electrical PowerElectrical Power Connections High Altitude Natural GAS Orifice ConversionAIR Conditioner Connections LOW Voltage Control Wiring ConnectionsSupply Voltage Connections Max OutletThermostat ID ModelsModulating TWO Stage AIR Furnace Conditioner UIM-B-1008 Modulating Furnace OD Models Single Stage Heat PumpThermostat Modulating Furnace TWO Stage Heat PumpSection VI Vent System Combustion Air Source From Outdoors FAN-ASSISTED Combustion SystemAmbient Combustion Air Supply Dampers, Louvers and Grilles Canada OnlyVent and Supply Outside Air Safety Check Procedure Air Supply Openings and DuctsVentilated Combustion Air Section VII START-UP Adjustments NOx Screen Removal Lo-NOx Models OnlyGAS Piping Leak Check Setup Test Mode Calculating the Furnace Input Natural GASSeconds For Size of Test Dial Revolution Cu Ft Seconds ForRevolution Cu Ft Adjustment of Manifold GAS Pressure Adjustment of Temperature RiseAdjustment of FAN Control Settings EAC060A12 080B12 Jumper Settings 080C16100C20 Section Viii Safety Controls Section IX Normal Operation and Diagnostics Furnace Control DiagnosticsNormal Operation Sequence Section X Replacement Parts List Diagnostic Fault Code Storage and RetrievalFabricated Parts Section XI Wiring Diagram Wiring DiagramJohnson Controls Unitary Products York Drive Norman, OK